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14.14.2.2 Judge Sunlight Intensity
Based on sunlight sensor output voltage, the sunlight intensity value will be computed and logged to sunlight
intensity database.
The sunlight sensor sensitivity could be adjusted:
SET
Press & release
Press to choose No.2
Sensitivity Level 1: Less sensitive to sunlight intensity
Sensitivity Level 3: Default sensitive level
Sensitivity Level 5: More sensitive to sunlight intensity
Default: (Battery insert)
Set to Level. 3
Other than default
Display last set data
Transmit
solar radiation
level
&
after *30 secs
go back to
normal mode
Set to Level. 4
Press
Timer
Timer
Set to Level. 5
Set to Level. 1
Set to Level. 2
Remote control normal mode
14.14.2.3 Judge Ambient Condition
According to sunlight intensity over a period of time, the system will analyze the ambient condition is sunny,
cloudy or night.
14.14.2.4 Temperature
Shift
Set
temperature
temperature
HEAT
COOL/DRY
+1.0 °C
-1.0 °C
-1.0 °C
ECONAVI
; Detecting sunlight intensity, the unit adjust temperature to save energy.
Ambient condition
Mode
Sunny
Sunny
Night/Cloudy
In a room without window or with thick curtain, the sunlight sensor will judge as cloudy/night.
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14.14.2.5 Sunlight Sensor Check Mode
To enable sunlight sensor check mode, during unit is OFF (power standby):
SET
Transmit ECO demo code and
after 30 seconds return to normal
mode.
after 30 seconds return to normal
mode.
Press continously for 5s
Transmit check code
and after 30 seconds return to normal
mode.
and after 30 seconds return to normal
mode.
Transmit sunlight sensor check code
and after 30 seconds return to normal
mode.
and after 30 seconds return to normal
mode.
Remote control normal mode
Operation
details
o The sunlight sensor check mode will be operated for 5 minutes.
o During check mode, the ON and OFF timer will be memorized but it operation be ignored.
o During check mode, if the sunlight sensor check code is retransmitted, the 5 minutes counter will be reset.
o During check mode, if sunlight sensor detected the sunlight intensity value above minimum level, the
o During check mode, the ON and OFF timer will be memorized but it operation be ignored.
o During check mode, if the sunlight sensor check code is retransmitted, the 5 minutes counter will be reset.
o During check mode, if sunlight sensor detected the sunlight intensity value above minimum level, the
ECONAVI indicator turns ON. Else if sunlight sensor detected sunlight intensity value below minimum level,
the ECONAVI indicator is OFF.
the ECONAVI indicator is OFF.
To disable sunlight sensor check mode
o After check mode is ended (5 minutes counter elapsed), press AUTO OFF/ON button at indoor unit.
o If the sunlight sensor detected sunlight intensity is at abnormal range, the check mode will be ended.
o If the sunlight sensor detected sunlight intensity is at abnormal range, the check mode will be ended.
Please check for error code.
14.14.2.6 Sunlight Sensor Abnormality
Abnormality
detection:
o When ECONAVI is ON, if the sunlight intensity value below minimum level continuously for 24 hours, the
sunlight sensor disconnection error counter will increase by 1 time. If the ECONAVI is OFF, the 24 hours
timer will be reset, but the sunlight sensor disconnection error counter will not be reset.
timer will be reset, but the sunlight sensor disconnection error counter will not be reset.
Error Code judgment
o When sunlight sensor disconnection error counter reached 15 times. H70 occurred.
o No TIMER indicator or ECONAVI indicator blink.
o No TIMER indicator or ECONAVI indicator blink.
When error code happened, the unit is able to operate without sunlight sensor.
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15. Operation Control (For Multi Split Connection)
During multi split connection, indoor unit’s operation controls are same with single split connection unless specified in
this chapter.
this chapter.
15.1 Cooling
operation
15.1.1 Thermostat
control
Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting
temperature < -2.0°C.
Capability resume supply to indoor unit after waiting for 3 minutes, if the Intake Air temperature — Internal setting
temperature > Capability supply OFF point.
15.2 Soft Dry Operation
15.2.1 Thermostat
control
Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting
temperature < -3.0°C.
Capability resume to indoor unit after waiting for 3 minutes, if the Intake Air temperature — Internal setting
temperature > Capability supply OFF point.
15.3 Heating
Operation
15.3.1 Thermostat
control
Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting
temperature > +1.0°C.
During this condition, the indoor fan is stopped if compressor is ON.
Capability resume supply to indoor unit after waiting for 3 minutes, if the Intake Air Temperature — Internal
Capability resume supply to indoor unit after waiting for 3 minutes, if the Intake Air Temperature — Internal
setting temperature < Capability supply OFF point.
15.3.2 Temperature Sampling Control
Temperature sampling is controlled by outdoor unit where room temperature for all power supply ON indoor unit
could be obtained.
When capability supply to the indoor unit is OFF and the compressor is ON, the indoor fan motor is stopped.
During this condition, 15 seconds after sampling signal from outdoor unit is received, the indoor fan start
operation at low fan speed.
operation at low fan speed.
However, within first 4 minutes of capability stopped supply to the indoor unit, even sampling signal is received,
the sampling control is cancelled.
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15.4 Automatic
Operation
This mode can be set using remote control and the operation is decided by remote control setting temperature,
remote control operation mode, indoor intake and outdoor air temperature.
During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for
30 seconds to detect the indoor intake and outdoor air temperature. The operation mode is decided based on
below chart.
below chart.
Every 180 minutes, the indoor and outdoor temperature is judge. Based on remote control setting temperature,
the value of T1 will increase up to 10°C, T2 will decrease by 3°C and T3 will decrease up to 8°C.
15.5 Indoor Fan Motor Operation
15.5.1 Residual Heat Removal Control
To prevent high pressure at indoor unit, when heating mode thermostat-off condition or power supply OFF,
indoor fan continue to operate at controlled fan speed for maximum 30 seconds then stop.
15.6 Powerful
Mode
Operation
When the power mode is selected, the internal setting temperature will shift lower up to 4.0°C for Cooling/Soft
Dry or higher up to 6.0°C for heating than remote control setting temperature, the powerful operation continue
until user cancel the Powerful operation by pressing powerful button again.
until user cancel the Powerful operation by pressing powerful button again.
15.7 Auto
Restart
Control
When the power supply is cut off during the operation of air conditioner, the compressor will re-operate between
three to four minutes (10 patterns to be selected randomly) after power resume.
During multi split connection, Indoor unit will resume previous mode, include unit standby mode.
15.8 Indication
Panel
LED POWER TIMER nanoe
ECONAVI
Color White
White White White
Light ON
Operation ON
Timer Setting ON
nanoe ON
ECONAVI ON
Light OFF
Operation OFF Timer Setting OFF
nanoe OFF ECONAVI OFF
Note:
If POWER LED is blinking (0.5 seconds ON, 0.5 second OFF), the possible operation of the unit are during
Indoor Residual Heat Removal, Hot Start, during Deice operation, operation mode judgment, or ON timer
sampling.
sampling.
If POWER LED is blinking (2.5 seconds ON, 0.5 second OFF), the unit is in standby mode.
If TIMER LED is blinking, there is an abnormality operation occurs.
15.9 Mild Dry Cooling Operation
During multi split connection, Mild Dry Cooling Operation is disabled.
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